Machine for manufacturing heels for shoes



May 15, 1928, 1,669,672

0. l. POLLARD MACHINE FOR MANUFACTURING HEELS FOR SHOES Filed July 10.1923 9 Sheets-Sheet 1 INVENTOR.

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A TTORNEYS.

May 15, 1928. 1,66, 672

c. I. POLLARD MACHINE FOR MANUFACTURING HEELS FOR SHOES File ly 10, 19259 Sheets-Sheet 3 INVENTOR. W J WW4 A TTORNEYS.

May 15, 1928. 1,669,672

c. l. POLLARD MACHINE FOR MANUFACTURING HEELS FOR SHOES Filed July 10,1923 9 Sheets-Sheet.- 4

9 Sheets-Sheet 5 5 blow L64 M W c. 1. POLLARD Filed July 10, 1923MACHINE FOR MANUFACTURING HEELS FOR SHOES May 15, 1928.

May 215, @928 1,669,672

' C. E. POLLARD MACHINE FOR MANUFACTURING HEELS FOR SHOES Filed July 10,1923 9 Sheets-Sheet 8 May 15; 1928. 1,669,672

C. l. POLLARD MACHINE FOR MANUFACTURING HEELS FOR SHOES Filed July 10,1923 9 Sheets-Sheet 9 Q37K2/QALZL/W 1 $14414 $1 I Patented May 15 1928.

UNITED, STATES PATENT OFFICE.

CARL INGALLS POLLABD, OI PORTSMOUTH, OHIO, LSSIGNOB OF ONE-HALF TO THE'VUL- CAN LAST OOIPANY, OJ! PORTSMOUTH, OHIO, CORPORATION OF OHIO.

CHINE FOR MANUFACTURING HEELS FOB SHOES.

Application fled. July 10, 1988 Serial No. 650,828.

My invention relates to a machine for manufacturing heels for shoes.

It is the object of my inventionto provide a. machine which willmanufacture 5 heels for shoes out of wood and the like, and inparticular which will form the groove or convex portion of the forwardpart of the heel.

It is a further object of my invention to provide a method and machinefor guiding, holding, and carrying a blank of wood in position beneaththe retaining, cutting, and sawing members.

. It is a further object of my invention to will automatically adjustthemselves to varying blanks of varying depths.

It is a further object of my invention to provide mechanism foradjusting the cutting knives, and mechanism for adjusting the saws, aswell as mechanism for adjusting the pressure bar mechanism for holdingthe blanks in position.

It is a further object of p provide means for adjusting the position ofthe guiding mechanism, so that the blanks may be initially guided intoposition.

It is a further ob'ect of m invention to provide lags with a justableunters.

' It is a further object of my invention to provide lags and hunters,together with guides and pressure bars, which will hold the material inposition without the necessity for clamping it upon the lags, so that itis possible to place the wooden blanks being worked upon on the lags inthe path of the hunters without further adjustment.

It is a further object of my invention to provide cutting mechanismwhich may be readily attached and detached for resharpening, repair, andadjustment.

- It is my object, in the method of making i such heels, or theparticular portion of the heel in question, to provide means for trans rporting the blank of wood in a given path,

1 and to automatically discharge it at the end of the path.

. It is also myobject in this method to pro- I vide means of thecharacter described of 59 supporting the blank ando'f guidingit into aposition, where it is y'ieldingly he d. independently of any other blankon the carrier,

15 provide adjustable holding members which my invention to so that itshei ht will determine the position of the hol ing means, and it will beimpossible for any other blank of greater height to disarrange thisarrangement.

It is still a further object, while the blank is being transported andheld, to at the same time subject 1t to a cutting operation, then to atruing or sawing operation, and then to a final cutting or polishingaction, as the final cutting leaves a very smooth surface.

Referring to the drawings:

Figure 1 is a front elevation from the operators side of the machine.

gigure 2 is a plan view of the machine.

1 woo before it is worked upon.

Figure 4 is a blank of wood after the first cutting operation, showingthe groove in the top of the blank resulting from the yielding holdingmechanism having engaged the block.

Figure 5 is a similar perspective of the blank after it has been truedby the saw.

Figure 6 is a similar view of the blank in its finished condition, afterthe second knife has completed the final cutting operation. I j Figure 7is a detailed section showing the position of the blank when it is firstlocatedupon the lag adjacent the hunter and abutting the guide, beforeit passes into the machine beneath the holdin mechanism. v Figure 8illustrates t e position of the knife when working upon the blank duringtruin operation of the saw working on the b ank. Figure 10 is a similarview showing the second knife performing the final cutting operation.

Figure a hunter.

Figure 12 is a plan view of Figure 11. Figure 13 is a section on theline 13-13 of Figure 12. I

Figure 14' is a plan view of a lag with a difierent type of hunter.

re 3 is a perspective .of the blank of 11 is a side elevation of a lagand Figure 15 is a section on the line 15-15,

of Figure 14.

Figure 16 is a section enlarged, taken fore ment and relationship of thesaw and its accompanying parts, and the means of positioning the saw.

Figure 17 is a section showing in detail the positioning means for thechain and the showing the arrangement of the drives with thesuperstructure removed.

Figure 22 is a detailed section showing the adjusting mechanism anddrives, as well as the support for the cutter shaft and the cutters. Thesection is taken on the line 22-22 of Figure 18.

Figure 23 is a plan view showing a portion of the transverse andvertical adjustment for the pressure bar slides, and a portion of thepressure bar weight mechanism.

Figure 24 is a side elevation of the pres sure bar mechanism.

Referring to the drawings in detail:

1 is a base. Mounted on this base are a pair of tracks 2 and 3, whichserve to support a series of plates known as lags, which are designated4. These lags are mounted u on an endless chain 5 by means of a bolt 6ig. 16) passing through a portion of the chain and being pivotallymounted in depending plates 7 and 8 on the bottom of the lag 4. Thuseach lag is pivotally mounted on its chain, and when the lags aretraveling on the upper side of the chain, they are supported in positionby the tracks 2 and 3.

On either end of the machine, on the forward side thereof, there aremounted sprocket wheels 9 and 10 for the purpose of driving the chainand moving the lags in succession from left to right. The lags passbehind and beneath a guard plate 11, which is adjustably mounted by thebolts 12 upon the face of the base 1 adjacent the operator. Anoverhanging shoulder 13 on the plate 11 prevents the lags from. movingupwardly from the track 3. This bolt 12 passes through the tracks 2 and3. 7

It is provided with a thread 14, which engages with the track 2, andthus serves to adjust the position of the tracks; this thread alsoserves to hold the nut 15 on the bolt 12. As the tracks are fixed partsof the frame of the machine, by means of the bolt 12 the guard plate 11can be adjusted with relation to the travel of the lags.

This arrangement provides a continuously.

moving chain or belt having thereon a plurality of supports or lags uponwhich the blanks hereinafter described are mounted to be worked upon bythe machine.

The sprocket wheels are mounted on the shafts 16 and 17 respectively.The shaft 17 is the driving shaft. It is journaled in the support 18 andthe support 19 on the side of the base 1. Its rear end carries a gear20, which meshes with a pinion 21 on'a stub shaft 22, which inturncarries a bevel gear 23. This bevel gear meshes with a second bevelgear 01' pinion 24 mounted on a shaft 25, which is located parallel tothe back of the base 1. This shaft 25 is mounted in bearings 26, 26, onthe rear of the base 1. At the outer end of the shaft on the left handside of the machine, a large pulley 27 is rovided to receive a drivingbelt 28, which is driven in turn from a pulley 29 actuated by anelectricmotor 30. The details of this drive are best seen in Figures 2 and 21.

Turning again to the lags or carriers on the endless chain or conveyor,it will be observed that the lag carries what is known as a bunter 31.This bunter may be either of the form shown in Figures 11, 12, and 13,or the form shown in Figures 14 and 15 depending upon the type of grooveto be imparted to the heel.

In the form shown in Figures 11, 12, and 13, the bunter consists of asegmental plate 32 having a downwardly projecting pin 33 fitting in thesocket 34 in the lag, so that it may swing about this pivot as it isadjusted in position. The set-screw 35,- which is located in the slot 36of the bunter is carried also by the lag (see Figure 13). Thesemicircular end 36 of the hunter toward the operator has a series ofgraduations thereon, designated 37, in order to enable the operator toset all of the hunters at a predetermined point.

It will be noted that the bunter consists not only of the plate 32, butof an upstanding shoulder 32, against which the blank 37 rests.

Turning to the other type of bunter, it will be noted that the lag isprovided with a transverse groove 38 in which there travels the shoulder39 of the bunter block 40. The

retaining bolt 41 which passes through the of in the same way. Thisguide is supported on a rod 45, and is carried by the head 46 on saidrod. This rodis supported in the bean,

and forwardly for adjustment of position.

(See Figures 2, 20, and 21.) This transverse arm 49 is located beneaththe table 50, which is mounted on top of the frame 1.

This arm, which extends to the central por-- tion of the machine, isprovided with a split collar 51 at the end thereof, which is heldtogether by the bolt 52. This split collar embraces a sliding sleeve 53,which in turn contains the rotating saw-shaft 54. The lower half of thecollar is provided with a downwardly extendin arm or bracket 55, at thelower end of whic 1 is an eye 56, suitably threaded for the reception ofan operating worm shaft 57. This operating worm shaft extends outwardlytoward the operator and terminates in a handwheel 58-outside of themachine on the front thereof adjacent the operator. The purpose of thismechanismis to provide means for simultaneously moving the guide 44 andthe saw 59 which is carried on the saw-shaft 54.

Turnin to Figures 1, 23, and 24, it will be seen at, as the blank 37 iscarried to the right hand by the conveyor, it passes beneath a pressurebar 60, having a V- shaped shoulder 61 on the bottom thereof forengaging with the soft Wood of the blank to prevent it movin laterally.This pressure bar 60 is carried by the bolt 62 on the bottom of a block63, which is adapted to move vertically in a guide frame 64. Mounted inthis guide frame are 'eyes 65 supporting the shaft 67, said shaft inturn attached to the end of ap'lg'irality of arms 68, each one of whichupon the to of the sliding block 63, to keep the bloc and the pressurebar in engagement with a wooden blank 37. Adjustable weights 69 arecarried on the outer ends.of these arms 68, the set-screws 70.

and held in position'b held Retaining lugs 71, in' position by the boltsor screws 72, limit the upward movement of the block 63. The wholeguideframe or carrier 64 is adapted to be elevated by the worms 73 atits ends. These worms are actuated by a handwheel 74 on the crossshaft75 which carries the bevel gears 76 and 77 meshing with the bevel gears78 and'79 on the upper ends of the worms 73.

This carrier 64 has fore and aft movement to and from the operatorimparted to it by the following means. A slide 80 is provided at eitherend of the gear adjacent the worm 73 at either end thereof. These slides.move in guide-ways 81 carried by the table.

85 in the slide 80. Thus it is possible to secure'both a-vertical andfore and aft adjustment of the guide-way for the blocks and premurebars.

it is in position for the first cutting operation, the result of whichis shown in Figure 4. Figure 8 shows the blank 37 in. position as it isbeing trimmed by the knife 86. This knife is carried upon a verticalshaft (see Figs, 8 and 22) designated 87. It is supported in a lowerknifeblock 88 and en ed on the top by the knife-block 89, Wfillil inturn is'engaged by the nut 90. The lower knife-block is supported on theshoulder 91 of the shaft. This pressure bar,

shaft tapers inwardly and downwardly from- After the blank has passedbeneath the,

the shoulder to form a bearing surface for engagement with the bearing92, which is supported in the collar 93, mounted on the arm 102, whichis internally threaded at 103 for the receptionof the screw 104. Thisscrew is actuated by the handwheel 105, and is supported by thebase-block 106. The base of the shaft 87 rests upon a ball- 107, whichin turn is supported by an internall threaded cup 108, whichis held on athrea' this shaft 87 consist-.

ed apron 109 depending fromthe bearing block 100.

Thus it is possible to adjust this shaft and its knives vertically byturning the hand- Wheel 105;

The next step in the operation on the blank is to move it adjacentthesaw '59 which is carried on the saw-shaft 54.v On the end of thesaw-shaft 54 is threaded a nut 110, which engages a collar carried onthe shaft designated 111. The saw 59 is embraced between this collar andthe head 112 of the sleeve 53. This sleeve surrounds the shaft 54. Theassembly is sup rted inthe bracket 114 at its forward en and in thebracket 115 at its rear end. A collar 51 is carried on this sleeve, andhas a depending bracket 55 at the bottom of which is an eye internallythreaded at 119 to receive a worm 57 which is mounted in the bracket114. This worm is actuated by the handwheel 58. As this handwheel isrotated, 51 and 55 are no I moved inwardly or outwardly, thereby movingthe saw and the shaft inwardly or outwardly.

The shaftis actuated by the pul- 7 ley 122 mounted on its inner end andretained thereon by the nut 123. This pulley is in turn actuated by thebelt 124. This belt passes downwardly to engagement with the shaft 125of the motor 126. (See Fig. 21.)

After passing by the saw, the blank is engaged by the second knife, asshown in Figure 10, which is similarly constructed, supported, anddriven, as well as adjusted to the knife and its accompanying mechanismalready described.

This arrangemnt is clearly shown in Figure 18. The base or frame 1carries the slide-block 127, which is retained on the base by the bolt128. This slide-block is inwardly beveled as at 129 on either side.

On either side of the face of the base 1 llocks 130, having inwardlybeveled The respective beveled faces 131 age with corresponding beveled2 and 133. The shoulders 134 'ing the beveled surfaces 133 and 'arriedon the collars 101 and 93. 2 m ght hand knife-shaft is driven by thebelt 136 from the motor 137.

Turning to the product itself, it will be seen that the blank 37 ofFigure 3 acquires a groove 138 due to the pressure thereon of the edge61. The first pair of knives cut a groove 139 in the face of the blank.The saw straightens the faces 140 and 141, while the second pair ofknives put the finishing curvature to the face 139, thus reducing thearea of the face 141.

7 Operation.

The machine is started by turning on the power, whereupon the conveyormoves and the knives and saw revolve. The operator places a blankagainst the hunter on the lag, with its forward edge against the guide.It is then carried beneath the knife edge 61 and the pressure bar of thefirst presserblock 63, and while so held in position by the successivepressure bars it is first cut by the knives, then trimmed by the saw,then finished by the knives,- and then carried out and ejected by beingdumped from the surface of the lag, having been freed from the lastpressure bar. All blanks are thus treated alike, irrespective of theirdimensions or height. When the guide is adjusted in position, the saw islikewise adjusted for fin-- ishing the faces of the blank., Adjustmentsare provided for the vertical and transverse movements of the pressureblock carrier.

Adjustments are also the knives in po ition.

In case of wear of the track or the lags, suitable adjustments can bemadeto maintain the parts in their proper operative relationships. Theseadjustments are of great importance to adapt the machine to variousprovided for locating types, dimensions,-and curvatures of heel.

They are also important fon'taking up wear on the parts.

The sprocket shaft 16 is carried in a block 114'", which is adjusted inposition inthe frame 116 by the set-screws 117.

It will be understood that I desire to comprehend within my inventionsuch modifications as may be fairly embraced within it, and as may befound necessary in adapting it to various conditions in the art in thecourse of the application of the invention.

By changing the blank so that it lies on its side, the groove may be soarranged that it is possible to manufacture a Cuban heel asdistinguished from the French heel, in which the curvature is in adifferentdirection and of a different character, as heretoforedescribed.

It will also be observed that the guide 44 can be adjusted independentlyof the saw adjustment by actuating the collar 49 after loosening thesetting nuts.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is:

1. I11 a heel-grooving machine, the combination of a support, aconveyor, a plurality of lags thereon, a hunter on each of said lags, aguide to guide blanks into position on said lags, a plurality ofseparable pressure bars operating on each blank independently, a pair ofspaced grooving means, a facing means interposed therebetween, means foradjusting said facing means and said guiding means simultaneouslyinwardly and outwardly, means for adjusting said pressure bars as a unitvertically and inwardly and outwardly, and means for adjusting saidgrooving means vertically.

2. In a heel-grooving machine, the combination of tracks, a conveyor, aplurality of lags thereon, a bunter on each of said lags, a: guide toguide blanks into position on said lags, a plurality of separablepressure bars operating on each blank independently, a pair of spacedgrooving means, a facing means interposed therebetween, means foradjusting said facing means and said guiding means independentlyinwardly and outwardly, means for adjusting said pressure bars as a unitvertically and inwardly and outwardly, and means for adjusting said,groovmg means vertically.

I made-rs dependently of one another, a guide connected to said facingsaw for guiding blanks into a proper position beneath the pressure meansfor driving said saw-facing means,

and means for driving said grooving heads and their shafts independentlyof one another, one of said means being adapted to actuate saidconveyor.

4. In a heel-grooving machine, a conveyor, a support, means foractuating said conveyor, a plurality of lags and bunters on saidconveyor, a grooving means, a vertically and laterally adjustable holderoverlying the lags, a plurality of blocks adapted to move verticallytherein, a plurality of independent weights adapted to engage each ofsaid blocks and force each of said blocks downwardly, and detachablepressure bars with engagin knife edges on the base thereof carried byeach of said blocks, whereby blanks mounted on said lags will engagesuccessively and independently said pressure bars, which willautomatically adjust themselves in position to the height of saidblanks, irrespective of the height of any other blank. 7

5. In a heel-grooving machine, the combination of a supporting frame anda plu-.

rality of successively operating blank-trimming mechanisms horizontalldisposed in said frame, with means for eeding blanks past the trimmingmechanisms comprising a horizontal guideway mounted on the supportingframe adjacent to the trimming mechanisms, a plurality of lags forcarrying blanks adapted to travel on the guideof successive a luralityof 1 way, an endless conveyor for moving the lags along the guideway, acarrier adjustable on the supporting frame relatively to the travel ofthe lags, a series of independent presserblocks movably, mounted on thecarrier to cooperate successively with the travelling lags to hold theblanks as the latter are sub jected to the trimming mechanism,independent means normally pressing each presserblock to cooperate withthe lags in holding the blanks, and means for movingthe carrier on thesupporting frame to adjust the series of presser-blocks as a whole withrelation to the travel of the lags, I

6. In a heel-groovingmachine the combination of a-supporting frame and aplurality y operating blank-trimming mechanisms horizontally disposed insaid frame, with means for feeding blanks past the trimming mechanismscomprising a horizontal guideway mounted on the supporting frameadjacent to the trimming mechanism,

for carrying lanks adaptto travel on e ideway, an endless con- 7 veyorfor movin t e lags along the guideway, a carrier a justable on thesupporting frame relatively to the travel of the lags, a series ofindependent presser-blocks movably mounted on the carrier, edged barsmounted on the presser-blocksto be pressed into en'- gagement with theblanks carried by the lags, independent means normally pressing eachpresser-block to force its edged bar into in said frame, with meansfol-feeding blanks past the trimming mechanisms comprising a horizontalguideway mounted on the main frame and extendin past the trimmingmechanisms, a plurallty of lags for carrying blanks adapted to travel onthe guideway, an endless conveyer for movin the lags along the guideway,an auxiliary rame horizontally movable on the main frame, a carriervertically movable on the auxiliary frame, ,a series of independentpresserblocks movably mounted on the carrier to cooperate successivelywith the travelling lags to hold the blanks as the latter are presentedto the trimmin mechanisms, independent means norma y pressing eachpresser-block to cooperate with the ags in holding the blanks means formoving the carrier on the auxiliary to adjust the series ofpresser-blocks as a whole in vertical relation to the travel of thelags, and means for moving the auxiliary frame to adjust the series ofpresser blocks as a whole in horizontal relation to the travel of thelags. 8. In a heel-grooving machine, the combination of a mainsupporting frame and a plurality of successively operating blanktrimmingmechanisms horizontally dis in said frame, with means for feeding b ankspast the trimming mechanism comprising a horizontal guideway mounted onthe main frame and extending past the trimming mechanisms, a pluralityof lags for carrying blanks adapted to travel on the guideway, anendless conveyor for movin the lags along-[the ideway, an auxiliary amehorizonta y. a justed on the main frame to and from the travel of thelags, a carrier vertically adjustable on the auxihary frame to and fromthe travel of the lags, said carrier having a plurality of verticalguide posed the positioning of blanks thereon, of a bunter movablyengaging the la for horizontal adjustment on the workace of the lag,said bunter having an exterior workface angularly disposed to theWork-face of the lag and adapted to engage a side of a blank positionedon the work-face of the lag, and a bolt extending through the hunter andlag to clamp the bunter in place in its horizontal adjustments on thework-face of the lag, the said bunter comprising a plate and shoulderwith a plurality of graduations on the plate, whereby the hunter may beset at a predetermined point.

10. In a heel-grooving machine, the combination with a lag having awork-face for the positioning of blanks thereon, of a bunter pivoted tothe lag by a vertical pivot to provide horizontal angular adjustment ofthe bunter on the work-face of the lag, said bunter having an exteriorwork-face angularly disposed to the work-face of the lag and adapted toengage a side of a blank po' sitioned on the work-face of the lag, and abolt extending through the bunter and lag to clamp the bunter in placein its adjustments on the work-face of the lag, the said buntercomprising a plate and shoulder,'with a plurality of graduations on theplate, whereby the buntermay be set at a predetermined point.

11. In a heel-grooving machine, the combination with a lag having awork-face for the positioning of blanks thereon, of a hunter pivoted atone end to the lag by a vertical pivot to provide horizontal angularadjustment of the bunter on the workface of the lag, said bunter havinga slot in its free end, said bunter also having an exterior work-faceangularly disposed to the work-face of the lag and adapted to engage aside of a blank positioned on the work-face of the lag, and a boltmounted in the lag and extending through the slot in the bunter for Yclamping the hunter in place in its adjustments on the work-face of thelag, the said bunter comprising a plate and shoulder,

with a plurality of graduations on the plate, whereby the bunter may beset at a prede tcrmined point.

In testimony whereof, I aflix my signature.

CARL INGALLS POLLARD.

